Why is this an issue?
Calling GC.Collect
is rarely necessary, and can significantly affect application performance. That’s because it triggers a blocking
operation that examines every object in memory for cleanup. Further, you don’t have control over when this blocking cleanup will actually
run.
As a general rule, the consequences of calling this method far outweigh the benefits unless perhaps you’ve just triggered some event that is unique
in the run of your program that caused a lot of long-lived objects to die.
This rule raises an issue when GC.Collect
is invoked.
Noncompliant code example
static void Main(string[] args)
{
// ...
GC.Collect(2, GCCollectionMode.Optimized); // Noncompliant
}